UNDATED - Authorities say there's more than pushing and shoving going on as the holiday shopping gets under way.

Los Angeles police are looking for a woman who used pepper spray to keep rival shoppers away from merchandise she wanted last night. Twenty people suffered minor injuries after being sprayed at a Walmart.

In Fayetteville, N.C., police are looking for two suspects who fired shots in a mall. There are no reports of injuries.

Police in upstate New York say two women were injured and a man has been charged after a fight broke out at a Walmart.

And Phoenix TV station KSAZ reports that a grandfather was roughed up by police in a Walmart after he allegedly put a game in his waistband so he could lift his grandson out of an unruly crowd. Witnesses told the station that police slammed the man to the ground -- possibly thinking he was stealing the game.